Date: Dna Model Questions

NAME: SCIENCE P #: _____

DATE: DNA MODEL QUESTIONS

If it is in bold, write the answer in your notebook! Include the question in your answer OR write the question.

1. Look at the picture on page 130. On your paper, write the name of the system, its parts and function.

1. Name of system:

1. Parts of system (list the letters):

1. Function of system (1st paragraph pg. 128):

1. Read page 128. Do the following:

1. What does “A” stand for?

1. What does “T” stand for?

1. What does “G” stand for?

1. What does “C” stand for?

1. What is a nucleotide?

1. What does “S” stand for?

1. What does “P” stand for?

1. A nucleotide is a subsystem of the DNA molecule. What are the parts of a nucleotide?

1. Read “Eureka!” on page 129 and “DNA Structure” on page 130. Do the following:

1. Describe what a “double helix” is.

1. What does adenine always pair up with?

1. What does guanine always pair up with?

1. After making the “class DNA model,” answer these questions:

1. What part of DNA did you hold in your hand?

1. You represented part of the DNA double helix as well. What part were you?

1. The nucleotides fit together like the pieces of a puzzle. How was this shown in the class DNA model?

1. Here is ONE SIDE of a section of the nucleotides in DNA. Write nucleotides that would be on the other side. Write both sides on your paper.

A

T

T

A

C

G

G

C

T

C

1. While looking at the model Mrs. Mettler made, answer these questions:

1. What are the parts and what are their colors?

You will build a model of DNA. You will have some time in class to work on this. The rest needs to be done at home.

Materials:

Next to each material, write down the part of the DNA model it will represent. Be sure to list all materials needed to do project (for example, include things such as glue, wire, tape…)

Draw a diagram of your model. Label the part and the material you will use for each.

REQUIREMENTS:

• Your model needs to be 10 bases long
• Twisted like the real thing
• Bases fit together like the pieces of a puzzle
• Have a sugar phosphate backbone
• Have a key
• Be sturdy
• SEE RUBRIC for specifics

You will be graded on accuracy, neatness, meeting the requirements listed above, and answering these questions.

1. List three ways building the DNA model of DNA helped you understand its structure.

1. Does building models help you better understand concepts? Use two examples/pieces of support to support your answer.

1. Models aren’t perfect. List two ways your DNA model isn’t a perfect representation of the real thing.

1. DNA is a system. What are its parts and function?

1. Make a LARGE, detailed, labeled diagram of your DNA model on a piece of construction paper. The diagram of your model does not have to be twisted like the double helix. Include a key—key will be same as the key for model. The diagram must go from the top edge to the bottom edge of the paper. See example:

DNA MODEL RUBRIC

A=120-108B=107-96C=95-84D=83-72LESS THAN 72=F

1